Pith Number

pith:APKKFCZB

pith:2016:APKKFCZBDQK2MJTC65O3TB7H2W

not attested not anchored not stored refs pending

Numerical methods for interface coupling of compressible and almost incompressible media

Mauricio J. Del Razo, Randall J. LeVeque

arxiv:1604.08544 v1 · 2016-04-28 · math.NA · physics.flu-dyn · q-bio.QM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{APKKFCZBDQK2MJTC65O3TB7H2W}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:17:55.360307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03d4a28b211c15a62662f75db987e7d597b8e33a4f8dd009aaf3326a3ff2a73e

Aliases

arxiv: 1604.08544 · arxiv_version: 1604.08544v1 · doi: 10.48550/arxiv.1604.08544 · pith_short_12: APKKFCZBDQK2 · pith_short_16: APKKFCZBDQK2MJTC · pith_short_8: APKKFCZB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/APKKFCZBDQK2MJTC65O3TB7H2W \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 03d4a28b211c15a62662f75db987e7d597b8e33a4f8dd009aaf3326a3ff2a73e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "111137c32a41e973694af80f524bbd5197f923985984946d81f58858c8f2562d",
    "cross_cats_sorted": [
      "physics.flu-dyn",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-04-28T18:22:20Z",
    "title_canon_sha256": "1f456068728acfee866fa165e341d7604ef728eb57e9ff22c9569b70f4f42407"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08544",
    "kind": "arxiv",
    "version": 1
  }
}